Home / 1,985.64-2,737.74-1,631.16

Finding the Fourth Proportional to 1,985.64, 2,737.74 and 1,631.16

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Solution

The fourth proportional to 1,985.64, 2,737.74 and 1,631.16 is: 2,248.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.64 : 2,737.74 = 1,631.16 : x
  2. Step 2: Convert to fraction form
    1,985.64/2,737.74 = 1,631.16/x
  3. Step 3: Cross multiply
    1,985.64x = 2,737.74 × 1,631.16
  4. Step 4: Simplify right side
    1,985.64x = 4,465,691.98
  5. Step 5: Solve for x
    x = 4,465,691.98/1,985.64
  6. Step 6: Final answer
    x = 2,248.99

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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.