Home / 2,889.04-4,335.70-2,156.40

Finding the Fourth Proportional to 2,889.04, 4,335.70 and 2,156.40

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Solution

The fourth proportional to 2,889.04, 4,335.70 and 2,156.40 is: 3,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,889.04 : 4,335.70 = 2,156.40 : x
  2. Step 2: Convert to fraction form
    2,889.04/4,335.70 = 2,156.40/x
  3. Step 3: Cross multiply
    2,889.04x = 4,335.70 × 2,156.40
  4. Step 4: Simplify right side
    2,889.04x = 9,349,503.48
  5. Step 5: Solve for x
    x = 9,349,503.48/2,889.04
  6. Step 6: Final answer
    x = 3,236.20

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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.