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Finding the Fourth Proportional to 5,581.51, 8,332.32 and 5,386.72

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Solution

The fourth proportional to 5,581.51, 8,332.32 and 5,386.72 is: 8,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.51 : 8,332.32 = 5,386.72 : x
  2. Step 2: Convert to fraction form
    5,581.51/8,332.32 = 5,386.72/x
  3. Step 3: Cross multiply
    5,581.51x = 8,332.32 × 5,386.72
  4. Step 4: Simplify right side
    5,581.51x = 44,883,859.48
  5. Step 5: Solve for x
    x = 44,883,859.48/5,581.51
  6. Step 6: Final answer
    x = 8,041.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.