Home / 3,718.68-5,130.18-2,461.32

Finding the Fourth Proportional to 3,718.68, 5,130.18 and 2,461.32

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Solution

The fourth proportional to 3,718.68, 5,130.18 and 2,461.32 is: 3,395.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.68 : 5,130.18 = 2,461.32 : x
  2. Step 2: Convert to fraction form
    3,718.68/5,130.18 = 2,461.32/x
  3. Step 3: Cross multiply
    3,718.68x = 5,130.18 × 2,461.32
  4. Step 4: Simplify right side
    3,718.68x = 12,627,014.64
  5. Step 5: Solve for x
    x = 12,627,014.64/3,718.68
  6. Step 6: Final answer
    x = 3,395.56

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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.