Home / 2,689.76-4,036.23-1,457.14

Finding the Fourth Proportional to 2,689.76, 4,036.23 and 1,457.14

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Solution

The fourth proportional to 2,689.76, 4,036.23 and 1,457.14 is: 2,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.76 : 4,036.23 = 1,457.14 : x
  2. Step 2: Convert to fraction form
    2,689.76/4,036.23 = 1,457.14/x
  3. Step 3: Cross multiply
    2,689.76x = 4,036.23 × 1,457.14
  4. Step 4: Simplify right side
    2,689.76x = 5,881,352.18
  5. Step 5: Solve for x
    x = 5,881,352.18/2,689.76
  6. Step 6: Final answer
    x = 2,186.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.