Home / 2,148.90-2,965.78-1,363.02

Finding the Fourth Proportional to 2,148.90, 2,965.78 and 1,363.02

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Solution

The fourth proportional to 2,148.90, 2,965.78 and 1,363.02 is: 1,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.90 : 2,965.78 = 1,363.02 : x
  2. Step 2: Convert to fraction form
    2,148.90/2,965.78 = 1,363.02/x
  3. Step 3: Cross multiply
    2,148.90x = 2,965.78 × 1,363.02
  4. Step 4: Simplify right side
    2,148.90x = 4,042,417.46
  5. Step 5: Solve for x
    x = 4,042,417.46/2,148.90
  6. Step 6: Final answer
    x = 1,881.16

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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.