Home / 2,031.86-2,806.17-1,403.30

Finding the Fourth Proportional to 2,031.86, 2,806.17 and 1,403.30

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Solution

The fourth proportional to 2,031.86, 2,806.17 and 1,403.30 is: 1,938.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.86 : 2,806.17 = 1,403.30 : x
  2. Step 2: Convert to fraction form
    2,031.86/2,806.17 = 1,403.30/x
  3. Step 3: Cross multiply
    2,031.86x = 2,806.17 × 1,403.30
  4. Step 4: Simplify right side
    2,031.86x = 3,937,898.36
  5. Step 5: Solve for x
    x = 3,937,898.36/2,031.86
  6. Step 6: Final answer
    x = 1,938.08

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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.