Home / 7,240.86-10,854.34-2,307.78

Finding the Fourth Proportional to 7,240.86, 10,854.34 and 2,307.78

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Solution

The fourth proportional to 7,240.86, 10,854.34 and 2,307.78 is: 3,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.86 : 10,854.34 = 2,307.78 : x
  2. Step 2: Convert to fraction form
    7,240.86/10,854.34 = 2,307.78/x
  3. Step 3: Cross multiply
    7,240.86x = 10,854.34 × 2,307.78
  4. Step 4: Simplify right side
    7,240.86x = 25,049,428.77
  5. Step 5: Solve for x
    x = 25,049,428.77/7,240.86
  6. Step 6: Final answer
    x = 3,459.45

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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.