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Finding the Fourth Proportional to 1,649.70, 2,276.58 and 893.49

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Solution

The fourth proportional to 1,649.70, 2,276.58 and 893.49 is: 1,233.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,649.70 : 2,276.58 = 893.49 : x
  2. Step 2: Convert to fraction form
    1,649.70/2,276.58 = 893.49/x
  3. Step 3: Cross multiply
    1,649.70x = 2,276.58 × 893.49
  4. Step 4: Simplify right side
    1,649.70x = 2,034,088.94
  5. Step 5: Solve for x
    x = 2,034,088.94/1,649.70
  6. Step 6: Final answer
    x = 1,233.00

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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.