Home / 2,657.93-3,986.78-710.13

Finding the Fourth Proportional to 2,657.93, 3,986.78 and 710.13

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Solution

The fourth proportional to 2,657.93, 3,986.78 and 710.13 is: 1,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.93 : 3,986.78 = 710.13 : x
  2. Step 2: Convert to fraction form
    2,657.93/3,986.78 = 710.13/x
  3. Step 3: Cross multiply
    2,657.93x = 3,986.78 × 710.13
  4. Step 4: Simplify right side
    2,657.93x = 2,831,132.08
  5. Step 5: Solve for x
    x = 2,831,132.08/2,657.93
  6. Step 6: Final answer
    x = 1,065.16

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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.