Home / 5,167.02-7,130.48-2,809.16

Finding the Fourth Proportional to 5,167.02, 7,130.48 and 2,809.16

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Solution

The fourth proportional to 5,167.02, 7,130.48 and 2,809.16 is: 3,876.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.02 : 7,130.48 = 2,809.16 : x
  2. Step 2: Convert to fraction form
    5,167.02/7,130.48 = 2,809.16/x
  3. Step 3: Cross multiply
    5,167.02x = 7,130.48 × 2,809.16
  4. Step 4: Simplify right side
    5,167.02x = 20,030,659.20
  5. Step 5: Solve for x
    x = 20,030,659.20/5,167.02
  6. Step 6: Final answer
    x = 3,876.64

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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.