Home / 7,428.55-10,258.34-4,780.57

Finding the Fourth Proportional to 7,428.55, 10,258.34 and 4,780.57

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Solution

The fourth proportional to 7,428.55, 10,258.34 and 4,780.57 is: 6,601.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.55 : 10,258.34 = 4,780.57 : x
  2. Step 2: Convert to fraction form
    7,428.55/10,258.34 = 4,780.57/x
  3. Step 3: Cross multiply
    7,428.55x = 10,258.34 × 4,780.57
  4. Step 4: Simplify right side
    7,428.55x = 49,040,688.55
  5. Step 5: Solve for x
    x = 49,040,688.55/7,428.55
  6. Step 6: Final answer
    x = 6,601.65

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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.