Home / 6,875.29-9,490.31-4,222.95

Finding the Fourth Proportional to 6,875.29, 9,490.31 and 4,222.95

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Solution

The fourth proportional to 6,875.29, 9,490.31 and 4,222.95 is: 5,829.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,875.29 : 9,490.31 = 4,222.95 : x
  2. Step 2: Convert to fraction form
    6,875.29/9,490.31 = 4,222.95/x
  3. Step 3: Cross multiply
    6,875.29x = 9,490.31 × 4,222.95
  4. Step 4: Simplify right side
    6,875.29x = 40,077,036.05
  5. Step 5: Solve for x
    x = 40,077,036.05/6,875.29
  6. Step 6: Final answer
    x = 5,829.14

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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.