Home / 5,989.80-8,261.70-4,870.74

Finding the Fourth Proportional to 5,989.80, 8,261.70 and 4,870.74

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Solution

The fourth proportional to 5,989.80, 8,261.70 and 4,870.74 is: 6,718.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,989.80 : 8,261.70 = 4,870.74 : x
  2. Step 2: Convert to fraction form
    5,989.80/8,261.70 = 4,870.74/x
  3. Step 3: Cross multiply
    5,989.80x = 8,261.70 × 4,870.74
  4. Step 4: Simplify right side
    5,989.80x = 40,240,592.66
  5. Step 5: Solve for x
    x = 40,240,592.66/5,989.80
  6. Step 6: Final answer
    x = 6,718.19

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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.