Home / 4,459.90-6,689.76-1,862.20

Finding the Fourth Proportional to 4,459.90, 6,689.76 and 1,862.20

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Solution

The fourth proportional to 4,459.90, 6,689.76 and 1,862.20 is: 2,793.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,459.90 : 6,689.76 = 1,862.20 : x
  2. Step 2: Convert to fraction form
    4,459.90/6,689.76 = 1,862.20/x
  3. Step 3: Cross multiply
    4,459.90x = 6,689.76 × 1,862.20
  4. Step 4: Simplify right side
    4,459.90x = 12,457,671.07
  5. Step 5: Solve for x
    x = 12,457,671.07/4,459.90
  6. Step 6: Final answer
    x = 2,793.26

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1.5x scale

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.