Home / 4,353.18-6,503.28-2,780.57

Finding the Fourth Proportional to 4,353.18, 6,503.28 and 2,780.57

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Solution

The fourth proportional to 4,353.18, 6,503.28 and 2,780.57 is: 4,153.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,353.18 : 6,503.28 = 2,780.57 : x
  2. Step 2: Convert to fraction form
    4,353.18/6,503.28 = 2,780.57/x
  3. Step 3: Cross multiply
    4,353.18x = 6,503.28 × 2,780.57
  4. Step 4: Simplify right side
    4,353.18x = 18,082,792.75
  5. Step 5: Solve for x
    x = 18,082,792.75/4,353.18
  6. Step 6: Final answer
    x = 4,153.93

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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.