Home / 5,259.50-7,888.97-1,561.76

Finding the Fourth Proportional to 5,259.50, 7,888.97 and 1,561.76

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Solution

The fourth proportional to 5,259.50, 7,888.97 and 1,561.76 is: 2,342.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.50 : 7,888.97 = 1,561.76 : x
  2. Step 2: Convert to fraction form
    5,259.50/7,888.97 = 1,561.76/x
  3. Step 3: Cross multiply
    5,259.50x = 7,888.97 × 1,561.76
  4. Step 4: Simplify right side
    5,259.50x = 12,320,642.25
  5. Step 5: Solve for x
    x = 12,320,642.25/5,259.50
  6. Step 6: Final answer
    x = 2,342.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.