Home / 4,885.90-7,329.36-1,423.16

Finding the Fourth Proportional to 4,885.90, 7,329.36 and 1,423.16

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Solution

The fourth proportional to 4,885.90, 7,329.36 and 1,423.16 is: 2,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.90 : 7,329.36 = 1,423.16 : x
  2. Step 2: Convert to fraction form
    4,885.90/7,329.36 = 1,423.16/x
  3. Step 3: Cross multiply
    4,885.90x = 7,329.36 × 1,423.16
  4. Step 4: Simplify right side
    4,885.90x = 10,430,851.98
  5. Step 5: Solve for x
    x = 10,430,851.98/4,885.90
  6. Step 6: Final answer
    x = 2,134.89

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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.