Home / 1,572.68-2,355.52-1,023.20

Finding the Fourth Proportional to 1,572.68, 2,355.52 and 1,023.20

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Solution

The fourth proportional to 1,572.68, 2,355.52 and 1,023.20 is: 1,532.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.68 : 2,355.52 = 1,023.20 : x
  2. Step 2: Convert to fraction form
    1,572.68/2,355.52 = 1,023.20/x
  3. Step 3: Cross multiply
    1,572.68x = 2,355.52 × 1,023.20
  4. Step 4: Simplify right side
    1,572.68x = 2,410,168.06
  5. Step 5: Solve for x
    x = 2,410,168.06/1,572.68
  6. Step 6: Final answer
    x = 1,532.52

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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.