Home / 2,577.87-3,557.48-1,398.93

Finding the Fourth Proportional to 2,577.87, 3,557.48 and 1,398.93

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Solution

The fourth proportional to 2,577.87, 3,557.48 and 1,398.93 is: 1,930.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.87 : 3,557.48 = 1,398.93 : x
  2. Step 2: Convert to fraction form
    2,577.87/3,557.48 = 1,398.93/x
  3. Step 3: Cross multiply
    2,577.87x = 3,557.48 × 1,398.93
  4. Step 4: Simplify right side
    2,577.87x = 4,976,658.50
  5. Step 5: Solve for x
    x = 4,976,658.50/2,577.87
  6. Step 6: Final answer
    x = 1,930.53

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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.