Home / 2,658.02-3,987.26-710.22

Finding the Fourth Proportional to 2,658.02, 3,987.26 and 710.22

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Solution

The fourth proportional to 2,658.02, 3,987.26 and 710.22 is: 1,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658.02 : 3,987.26 = 710.22 : x
  2. Step 2: Convert to fraction form
    2,658.02/3,987.26 = 710.22/x
  3. Step 3: Cross multiply
    2,658.02x = 3,987.26 × 710.22
  4. Step 4: Simplify right side
    2,658.02x = 2,831,831.80
  5. Step 5: Solve for x
    x = 2,831,831.80/2,658.02
  6. Step 6: Final answer
    x = 1,065.39

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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.