Home / 6,862.51-9,470.28-3,718.70

Finding the Fourth Proportional to 6,862.51, 9,470.28 and 3,718.70

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Solution

The fourth proportional to 6,862.51, 9,470.28 and 3,718.70 is: 5,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862.51 : 9,470.28 = 3,718.70 : x
  2. Step 2: Convert to fraction form
    6,862.51/9,470.28 = 3,718.70/x
  3. Step 3: Cross multiply
    6,862.51x = 9,470.28 × 3,718.70
  4. Step 4: Simplify right side
    6,862.51x = 35,217,130.24
  5. Step 5: Solve for x
    x = 35,217,130.24/6,862.51
  6. Step 6: Final answer
    x = 5,131.81

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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.