Home / 1,903.84-2,627.34-1,117.90

Finding the Fourth Proportional to 1,903.84, 2,627.34 and 1,117.90

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Solution

The fourth proportional to 1,903.84, 2,627.34 and 1,117.90 is: 1,542.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.84 : 2,627.34 = 1,117.90 : x
  2. Step 2: Convert to fraction form
    1,903.84/2,627.34 = 1,117.90/x
  3. Step 3: Cross multiply
    1,903.84x = 2,627.34 × 1,117.90
  4. Step 4: Simplify right side
    1,903.84x = 2,937,103.39
  5. Step 5: Solve for x
    x = 2,937,103.39/1,903.84
  6. Step 6: Final answer
    x = 1,542.73

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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.