Home / 4,306.70-6,460.05-3,140.30

Finding the Fourth Proportional to 4,306.70, 6,460.05 and 3,140.30

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Solution

The fourth proportional to 4,306.70, 6,460.05 and 3,140.30 is: 4,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,306.70 : 6,460.05 = 3,140.30 : x
  2. Step 2: Convert to fraction form
    4,306.70/6,460.05 = 3,140.30/x
  3. Step 3: Cross multiply
    4,306.70x = 6,460.05 × 3,140.30
  4. Step 4: Simplify right side
    4,306.70x = 20,286,495.02
  5. Step 5: Solve for x
    x = 20,286,495.02/4,306.70
  6. Step 6: Final answer
    x = 4,710.45

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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.