Home / 5,417.48-8,108.86-2,915.16

Finding the Fourth Proportional to 5,417.48, 8,108.86 and 2,915.16

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Solution

The fourth proportional to 5,417.48, 8,108.86 and 2,915.16 is: 4,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.48 : 8,108.86 = 2,915.16 : x
  2. Step 2: Convert to fraction form
    5,417.48/8,108.86 = 2,915.16/x
  3. Step 3: Cross multiply
    5,417.48x = 8,108.86 × 2,915.16
  4. Step 4: Simplify right side
    5,417.48x = 23,638,624.32
  5. Step 5: Solve for x
    x = 23,638,624.32/5,417.48
  6. Step 6: Final answer
    x = 4,363.40

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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.