Home / 5,259.79-7,888.92-1,561.33

Finding the Fourth Proportional to 5,259.79, 7,888.92 and 1,561.33

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Solution

The fourth proportional to 5,259.79, 7,888.92 and 1,561.33 is: 2,341.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.79 : 7,888.92 = 1,561.33 : x
  2. Step 2: Convert to fraction form
    5,259.79/7,888.92 = 1,561.33/x
  3. Step 3: Cross multiply
    5,259.79x = 7,888.92 × 1,561.33
  4. Step 4: Simplify right side
    5,259.79x = 12,317,207.46
  5. Step 5: Solve for x
    x = 12,317,207.46/5,259.79
  6. Step 6: Final answer
    x = 2,341.77

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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.