Home / 2,508.86-3,462.36-1,389.92

Finding the Fourth Proportional to 2,508.86, 3,462.36 and 1,389.92

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Solution

The fourth proportional to 2,508.86, 3,462.36 and 1,389.92 is: 1,918.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.86 : 3,462.36 = 1,389.92 : x
  2. Step 2: Convert to fraction form
    2,508.86/3,462.36 = 1,389.92/x
  3. Step 3: Cross multiply
    2,508.86x = 3,462.36 × 1,389.92
  4. Step 4: Simplify right side
    2,508.86x = 4,812,403.41
  5. Step 5: Solve for x
    x = 4,812,403.41/2,508.86
  6. Step 6: Final answer
    x = 1,918.16

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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.