Home / 5,252.16-7,870.80-2,913.18

Finding the Fourth Proportional to 5,252.16, 7,870.80 and 2,913.18

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Solution

The fourth proportional to 5,252.16, 7,870.80 and 2,913.18 is: 4,365.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.16 : 7,870.80 = 2,913.18 : x
  2. Step 2: Convert to fraction form
    5,252.16/7,870.80 = 2,913.18/x
  3. Step 3: Cross multiply
    5,252.16x = 7,870.80 × 2,913.18
  4. Step 4: Simplify right side
    5,252.16x = 22,929,057.14
  5. Step 5: Solve for x
    x = 22,929,057.14/5,252.16
  6. Step 6: Final answer
    x = 4,365.64

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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.