Home / 2,547.50-3,521.44-2,125.39

Finding the Fourth Proportional to 2,547.50, 3,521.44 and 2,125.39

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Solution

The fourth proportional to 2,547.50, 3,521.44 and 2,125.39 is: 2,937.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,547.50 : 3,521.44 = 2,125.39 : x
  2. Step 2: Convert to fraction form
    2,547.50/3,521.44 = 2,125.39/x
  3. Step 3: Cross multiply
    2,547.50x = 3,521.44 × 2,125.39
  4. Step 4: Simplify right side
    2,547.50x = 7,484,422.73
  5. Step 5: Solve for x
    x = 7,484,422.73/2,547.50
  6. Step 6: Final answer
    x = 2,937.95

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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.