Home / 4,398.02-6,590.15-2,638.70

Finding the Fourth Proportional to 4,398.02, 6,590.15 and 2,638.70

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Solution

The fourth proportional to 4,398.02, 6,590.15 and 2,638.70 is: 3,953.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,398.02 : 6,590.15 = 2,638.70 : x
  2. Step 2: Convert to fraction form
    4,398.02/6,590.15 = 2,638.70/x
  3. Step 3: Cross multiply
    4,398.02x = 6,590.15 × 2,638.70
  4. Step 4: Simplify right side
    4,398.02x = 17,389,415.61
  5. Step 5: Solve for x
    x = 17,389,415.61/4,398.02
  6. Step 6: Final answer
    x = 3,953.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.