Home / 2,957.16-4,408.90-2,880.20

Finding the Fourth Proportional to 2,957.16, 4,408.90 and 2,880.20

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Solution

The fourth proportional to 2,957.16, 4,408.90 and 2,880.20 is: 4,294.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.16 : 4,408.90 = 2,880.20 : x
  2. Step 2: Convert to fraction form
    2,957.16/4,408.90 = 2,880.20/x
  3. Step 3: Cross multiply
    2,957.16x = 4,408.90 × 2,880.20
  4. Step 4: Simplify right side
    2,957.16x = 12,698,513.78
  5. Step 5: Solve for x
    x = 12,698,513.78/2,957.16
  6. Step 6: Final answer
    x = 4,294.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.