Home / 2,172.02-3,258.32-710.69

Finding the Fourth Proportional to 2,172.02, 3,258.32 and 710.69

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Solution

The fourth proportional to 2,172.02, 3,258.32 and 710.69 is: 1,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.02 : 3,258.32 = 710.69 : x
  2. Step 2: Convert to fraction form
    2,172.02/3,258.32 = 710.69/x
  3. Step 3: Cross multiply
    2,172.02x = 3,258.32 × 710.69
  4. Step 4: Simplify right side
    2,172.02x = 2,315,655.44
  5. Step 5: Solve for x
    x = 2,315,655.44/2,172.02
  6. Step 6: Final answer
    x = 1,066.13

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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.