Home / 5,370.29-7,411.37-2,980.38

Finding the Fourth Proportional to 5,370.29, 7,411.37 and 2,980.38

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Solution

The fourth proportional to 5,370.29, 7,411.37 and 2,980.38 is: 4,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.29 : 7,411.37 = 2,980.38 : x
  2. Step 2: Convert to fraction form
    5,370.29/7,411.37 = 2,980.38/x
  3. Step 3: Cross multiply
    5,370.29x = 7,411.37 × 2,980.38
  4. Step 4: Simplify right side
    5,370.29x = 22,088,698.92
  5. Step 5: Solve for x
    x = 22,088,698.92/5,370.29
  6. Step 6: Final answer
    x = 4,113.13

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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.