Home / 2,127.85-2,937.86-1,903.08

Finding the Fourth Proportional to 2,127.85, 2,937.86 and 1,903.08

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Solution

The fourth proportional to 2,127.85, 2,937.86 and 1,903.08 is: 2,627.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.85 : 2,937.86 = 1,903.08 : x
  2. Step 2: Convert to fraction form
    2,127.85/2,937.86 = 1,903.08/x
  3. Step 3: Cross multiply
    2,127.85x = 2,937.86 × 1,903.08
  4. Step 4: Simplify right side
    2,127.85x = 5,590,982.61
  5. Step 5: Solve for x
    x = 5,590,982.61/2,127.85
  6. Step 6: Final answer
    x = 2,627.53

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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.