Home / 5,106.90-7,047.28-2,838.13

Finding the Fourth Proportional to 5,106.90, 7,047.28 and 2,838.13

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Solution

The fourth proportional to 5,106.90, 7,047.28 and 2,838.13 is: 3,916.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,106.90 : 7,047.28 = 2,838.13 : x
  2. Step 2: Convert to fraction form
    5,106.90/7,047.28 = 2,838.13/x
  3. Step 3: Cross multiply
    5,106.90x = 7,047.28 × 2,838.13
  4. Step 4: Simplify right side
    5,106.90x = 20,001,089.69
  5. Step 5: Solve for x
    x = 20,001,089.69/5,106.90
  6. Step 6: Final answer
    x = 3,916.49

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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.