Home / 5,077.90-7,616.65-1,615.02

Finding the Fourth Proportional to 5,077.90, 7,616.65 and 1,615.02

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Solution

The fourth proportional to 5,077.90, 7,616.65 and 1,615.02 is: 2,422.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.90 : 7,616.65 = 1,615.02 : x
  2. Step 2: Convert to fraction form
    5,077.90/7,616.65 = 1,615.02/x
  3. Step 3: Cross multiply
    5,077.90x = 7,616.65 × 1,615.02
  4. Step 4: Simplify right side
    5,077.90x = 12,301,042.08
  5. Step 5: Solve for x
    x = 12,301,042.08/5,077.90
  6. Step 6: Final answer
    x = 2,422.47

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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.