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Finding the Fourth Proportional to 1,868.68, 2,572.98 and 1,602.76

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Solution

The fourth proportional to 1,868.68, 2,572.98 and 1,602.76 is: 2,206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868.68 : 2,572.98 = 1,602.76 : x
  2. Step 2: Convert to fraction form
    1,868.68/2,572.98 = 1,602.76/x
  3. Step 3: Cross multiply
    1,868.68x = 2,572.98 × 1,602.76
  4. Step 4: Simplify right side
    1,868.68x = 4,123,869.42
  5. Step 5: Solve for x
    x = 4,123,869.42/1,868.68
  6. Step 6: Final answer
    x = 2,206.84

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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.