Home / 6,822.50-9,415.40-4,549.91

Finding the Fourth Proportional to 6,822.50, 9,415.40 and 4,549.91

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Solution

The fourth proportional to 6,822.50, 9,415.40 and 4,549.91 is: 6,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,822.50 : 9,415.40 = 4,549.91 : x
  2. Step 2: Convert to fraction form
    6,822.50/9,415.40 = 4,549.91/x
  3. Step 3: Cross multiply
    6,822.50x = 9,415.40 × 4,549.91
  4. Step 4: Simplify right side
    6,822.50x = 42,839,152.79
  5. Step 5: Solve for x
    x = 42,839,152.79/6,822.50
  6. Step 6: Final answer
    x = 6,279.10

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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.