Home / 2,577.84-3,557.46-1,398.91

Finding the Fourth Proportional to 2,577.84, 3,557.46 and 1,398.91

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Solution

The fourth proportional to 2,577.84, 3,557.46 and 1,398.91 is: 1,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,577.84 : 3,557.46 = 1,398.91 : x
  2. Step 2: Convert to fraction form
    2,577.84/3,557.46 = 1,398.91/x
  3. Step 3: Cross multiply
    2,577.84x = 3,557.46 × 1,398.91
  4. Step 4: Simplify right side
    2,577.84x = 4,976,574.66
  5. Step 5: Solve for x
    x = 4,976,574.66/2,577.84
  6. Step 6: Final answer
    x = 1,930.52

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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.