Home / 5,316.16-7,974.20-2,392.40

Finding the Fourth Proportional to 5,316.16, 7,974.20 and 2,392.40

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Solution

The fourth proportional to 5,316.16, 7,974.20 and 2,392.40 is: 3,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.16 : 7,974.20 = 2,392.40 : x
  2. Step 2: Convert to fraction form
    5,316.16/7,974.20 = 2,392.40/x
  3. Step 3: Cross multiply
    5,316.16x = 7,974.20 × 2,392.40
  4. Step 4: Simplify right side
    5,316.16x = 19,077,476.08
  5. Step 5: Solve for x
    x = 19,077,476.08/5,316.16
  6. Step 6: Final answer
    x = 3,588.58

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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.