Home / 3,127.36-4,315.32-2,657.16

Finding the Fourth Proportional to 3,127.36, 4,315.32 and 2,657.16

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Solution

The fourth proportional to 3,127.36, 4,315.32 and 2,657.16 is: 3,666.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.36 : 4,315.32 = 2,657.16 : x
  2. Step 2: Convert to fraction form
    3,127.36/4,315.32 = 2,657.16/x
  3. Step 3: Cross multiply
    3,127.36x = 4,315.32 × 2,657.16
  4. Step 4: Simplify right side
    3,127.36x = 11,466,495.69
  5. Step 5: Solve for x
    x = 11,466,495.69/3,127.36
  6. Step 6: Final answer
    x = 3,666.51

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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.