Home / 7,312.16-10,090.80-4,168.48

Finding the Fourth Proportional to 7,312.16, 10,090.80 and 4,168.48

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Solution

The fourth proportional to 7,312.16, 10,090.80 and 4,168.48 is: 5,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.16 : 10,090.80 = 4,168.48 : x
  2. Step 2: Convert to fraction form
    7,312.16/10,090.80 = 4,168.48/x
  3. Step 3: Cross multiply
    7,312.16x = 10,090.80 × 4,168.48
  4. Step 4: Simplify right side
    7,312.16x = 42,063,297.98
  5. Step 5: Solve for x
    x = 42,063,297.98/7,312.16
  6. Step 6: Final answer
    x = 5,752.51

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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.