Home / 7,328.31-10,113.01-3,971.13

Finding the Fourth Proportional to 7,328.31, 10,113.01 and 3,971.13

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Solution

The fourth proportional to 7,328.31, 10,113.01 and 3,971.13 is: 5,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.31 : 10,113.01 = 3,971.13 : x
  2. Step 2: Convert to fraction form
    7,328.31/10,113.01 = 3,971.13/x
  3. Step 3: Cross multiply
    7,328.31x = 10,113.01 × 3,971.13
  4. Step 4: Simplify right side
    7,328.31x = 40,160,077.40
  5. Step 5: Solve for x
    x = 40,160,077.40/7,328.31
  6. Step 6: Final answer
    x = 5,480.13

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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.