Home / 1,577.60-2,354.70-1,393.10

Finding the Fourth Proportional to 1,577.60, 2,354.70 and 1,393.10

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Solution

The fourth proportional to 1,577.60, 2,354.70 and 1,393.10 is: 2,079.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.60 : 2,354.70 = 1,393.10 : x
  2. Step 2: Convert to fraction form
    1,577.60/2,354.70 = 1,393.10/x
  3. Step 3: Cross multiply
    1,577.60x = 2,354.70 × 1,393.10
  4. Step 4: Simplify right side
    1,577.60x = 3,280,332.57
  5. Step 5: Solve for x
    x = 3,280,332.57/1,577.60
  6. Step 6: Final answer
    x = 2,079.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.