Home / 2,972.90-4,454.55-1,875.30

Finding the Fourth Proportional to 2,972.90, 4,454.55 and 1,875.30

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Solution

The fourth proportional to 2,972.90, 4,454.55 and 1,875.30 is: 2,809.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.90 : 4,454.55 = 1,875.30 : x
  2. Step 2: Convert to fraction form
    2,972.90/4,454.55 = 1,875.30/x
  3. Step 3: Cross multiply
    2,972.90x = 4,454.55 × 1,875.30
  4. Step 4: Simplify right side
    2,972.90x = 8,353,617.62
  5. Step 5: Solve for x
    x = 8,353,617.62/2,972.90
  6. Step 6: Final answer
    x = 2,809.92

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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.