Home / 6,416.16-8,851.68-3,898.32

Finding the Fourth Proportional to 6,416.16, 8,851.68 and 3,898.32

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Solution

The fourth proportional to 6,416.16, 8,851.68 and 3,898.32 is: 5,378.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.16 : 8,851.68 = 3,898.32 : x
  2. Step 2: Convert to fraction form
    6,416.16/8,851.68 = 3,898.32/x
  3. Step 3: Cross multiply
    6,416.16x = 8,851.68 × 3,898.32
  4. Step 4: Simplify right side
    6,416.16x = 34,506,681.18
  5. Step 5: Solve for x
    x = 34,506,681.18/6,416.16
  6. Step 6: Final answer
    x = 5,378.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.