Home / 1,780.59-2,457.63-1,151.36

Finding the Fourth Proportional to 1,780.59, 2,457.63 and 1,151.36

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Solution

The fourth proportional to 1,780.59, 2,457.63 and 1,151.36 is: 1,589.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.59 : 2,457.63 = 1,151.36 : x
  2. Step 2: Convert to fraction form
    1,780.59/2,457.63 = 1,151.36/x
  3. Step 3: Cross multiply
    1,780.59x = 2,457.63 × 1,151.36
  4. Step 4: Simplify right side
    1,780.59x = 2,829,604.59
  5. Step 5: Solve for x
    x = 2,829,604.59/1,780.59
  6. Step 6: Final answer
    x = 1,589.14

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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.