Home / 2,915.08-4,023.54-1,970.44

Finding the Fourth Proportional to 2,915.08, 4,023.54 and 1,970.44

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Solution

The fourth proportional to 2,915.08, 4,023.54 and 1,970.44 is: 2,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.08 : 4,023.54 = 1,970.44 : x
  2. Step 2: Convert to fraction form
    2,915.08/4,023.54 = 1,970.44/x
  3. Step 3: Cross multiply
    2,915.08x = 4,023.54 × 1,970.44
  4. Step 4: Simplify right side
    2,915.08x = 7,928,144.16
  5. Step 5: Solve for x
    x = 7,928,144.16/2,915.08
  6. Step 6: Final answer
    x = 2,719.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.