Home / 1,560.16-2,340.18-405.88

Finding the Fourth Proportional to 1,560.16, 2,340.18 and 405.88

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Solution

The fourth proportional to 1,560.16, 2,340.18 and 405.88 is: 608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.16 : 2,340.18 = 405.88 : x
  2. Step 2: Convert to fraction form
    1,560.16/2,340.18 = 405.88/x
  3. Step 3: Cross multiply
    1,560.16x = 2,340.18 × 405.88
  4. Step 4: Simplify right side
    1,560.16x = 949,832.26
  5. Step 5: Solve for x
    x = 949,832.26/1,560.16
  6. Step 6: Final answer
    x = 608.80

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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.