Home / 2,343.80-3,234.60-1,557.32

Finding the Fourth Proportional to 2,343.80, 3,234.60 and 1,557.32

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Solution

The fourth proportional to 2,343.80, 3,234.60 and 1,557.32 is: 2,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.80 : 3,234.60 = 1,557.32 : x
  2. Step 2: Convert to fraction form
    2,343.80/3,234.60 = 1,557.32/x
  3. Step 3: Cross multiply
    2,343.80x = 3,234.60 × 1,557.32
  4. Step 4: Simplify right side
    2,343.80x = 5,037,307.27
  5. Step 5: Solve for x
    x = 5,037,307.27/2,343.80
  6. Step 6: Final answer
    x = 2,149.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.