Home / 6,905.10-10,357.65-4,140.30

Finding the Fourth Proportional to 6,905.10, 10,357.65 and 4,140.30

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Solution

The fourth proportional to 6,905.10, 10,357.65 and 4,140.30 is: 6,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.10 : 10,357.65 = 4,140.30 : x
  2. Step 2: Convert to fraction form
    6,905.10/10,357.65 = 4,140.30/x
  3. Step 3: Cross multiply
    6,905.10x = 10,357.65 × 4,140.30
  4. Step 4: Simplify right side
    6,905.10x = 42,883,778.30
  5. Step 5: Solve for x
    x = 42,883,778.30/6,905.10
  6. Step 6: Final answer
    x = 6,210.45

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Similar ratio
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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.