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Finding the Fourth Proportional to 1,606.68, 2,217.33 and 898.76

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Solution

The fourth proportional to 1,606.68, 2,217.33 and 898.76 is: 1,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,606.68 : 2,217.33 = 898.76 : x
  2. Step 2: Convert to fraction form
    1,606.68/2,217.33 = 898.76/x
  3. Step 3: Cross multiply
    1,606.68x = 2,217.33 × 898.76
  4. Step 4: Simplify right side
    1,606.68x = 1,992,836.42
  5. Step 5: Solve for x
    x = 1,992,836.42/1,606.68
  6. Step 6: Final answer
    x = 1,240.34

Related Problems

Find fourth proportional to 803.34, 1,108.67 and 449.38
Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.