Home / 1,564.28-2,346.10-577.70

Finding the Fourth Proportional to 1,564.28, 2,346.10 and 577.70

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Solution

The fourth proportional to 1,564.28, 2,346.10 and 577.70 is: 866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.28 : 2,346.10 = 577.70 : x
  2. Step 2: Convert to fraction form
    1,564.28/2,346.10 = 577.70/x
  3. Step 3: Cross multiply
    1,564.28x = 2,346.10 × 577.70
  4. Step 4: Simplify right side
    1,564.28x = 1,355,341.97
  5. Step 5: Solve for x
    x = 1,355,341.97/1,564.28
  6. Step 6: Final answer
    x = 866.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.