Home / 5,237.84-7,854.80-2,116.16

Finding the Fourth Proportional to 5,237.84, 7,854.80 and 2,116.16

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Solution

The fourth proportional to 5,237.84, 7,854.80 and 2,116.16 is: 3,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.84 : 7,854.80 = 2,116.16 : x
  2. Step 2: Convert to fraction form
    5,237.84/7,854.80 = 2,116.16/x
  3. Step 3: Cross multiply
    5,237.84x = 7,854.80 × 2,116.16
  4. Step 4: Simplify right side
    5,237.84x = 16,622,013.57
  5. Step 5: Solve for x
    x = 16,622,013.57/5,237.84
  6. Step 6: Final answer
    x = 3,173.45

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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.