Home / 6,421.92-9,630.16-2,038.20

Finding the Fourth Proportional to 6,421.92, 9,630.16 and 2,038.20

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Solution

The fourth proportional to 6,421.92, 9,630.16 and 2,038.20 is: 3,056.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.92 : 9,630.16 = 2,038.20 : x
  2. Step 2: Convert to fraction form
    6,421.92/9,630.16 = 2,038.20/x
  3. Step 3: Cross multiply
    6,421.92x = 9,630.16 × 2,038.20
  4. Step 4: Simplify right side
    6,421.92x = 19,628,192.11
  5. Step 5: Solve for x
    x = 19,628,192.11/6,421.92
  6. Step 6: Final answer
    x = 3,056.44

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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.