Home / 5,715.52-8,572.58-1,555.36

Finding the Fourth Proportional to 5,715.52, 8,572.58 and 1,555.36

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Solution

The fourth proportional to 5,715.52, 8,572.58 and 1,555.36 is: 2,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.52 : 8,572.58 = 1,555.36 : x
  2. Step 2: Convert to fraction form
    5,715.52/8,572.58 = 1,555.36/x
  3. Step 3: Cross multiply
    5,715.52x = 8,572.58 × 1,555.36
  4. Step 4: Simplify right side
    5,715.52x = 13,333,448.03
  5. Step 5: Solve for x
    x = 13,333,448.03/5,715.52
  6. Step 6: Final answer
    x = 2,332.85

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1.5x scale

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.