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Finding the Fourth Proportional to 6,985.40, 10,478.10 and 2,368.44

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Solution

The fourth proportional to 6,985.40, 10,478.10 and 2,368.44 is: 3,552.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.40 : 10,478.10 = 2,368.44 : x
  2. Step 2: Convert to fraction form
    6,985.40/10,478.10 = 2,368.44/x
  3. Step 3: Cross multiply
    6,985.40x = 10,478.10 × 2,368.44
  4. Step 4: Simplify right side
    6,985.40x = 24,816,751.16
  5. Step 5: Solve for x
    x = 24,816,751.16/6,985.40
  6. Step 6: Final answer
    x = 3,552.66

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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.