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Finding the Fourth Proportional to 6,315.60, 9,473.40 and 1,698.60

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Solution

The fourth proportional to 6,315.60, 9,473.40 and 1,698.60 is: 2,547.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.60 : 9,473.40 = 1,698.60 : x
  2. Step 2: Convert to fraction form
    6,315.60/9,473.40 = 1,698.60/x
  3. Step 3: Cross multiply
    6,315.60x = 9,473.40 × 1,698.60
  4. Step 4: Simplify right side
    6,315.60x = 16,091,517.24
  5. Step 5: Solve for x
    x = 16,091,517.24/6,315.60
  6. Step 6: Final answer
    x = 2,547.90

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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.