Home / 1,560.16-2,340.54-520.24

Finding the Fourth Proportional to 1,560.16, 2,340.54 and 520.24

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Solution

The fourth proportional to 1,560.16, 2,340.54 and 520.24 is: 780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.16 : 2,340.54 = 520.24 : x
  2. Step 2: Convert to fraction form
    1,560.16/2,340.54 = 520.24/x
  3. Step 3: Cross multiply
    1,560.16x = 2,340.54 × 520.24
  4. Step 4: Simplify right side
    1,560.16x = 1,217,642.53
  5. Step 5: Solve for x
    x = 1,217,642.53/1,560.16
  6. Step 6: Final answer
    x = 780.46

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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.