Home / 5,740.80-7,920.36-3,646.14

Finding the Fourth Proportional to 5,740.80, 7,920.36 and 3,646.14

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Solution

The fourth proportional to 5,740.80, 7,920.36 and 3,646.14 is: 5,030.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,740.80 : 7,920.36 = 3,646.14 : x
  2. Step 2: Convert to fraction form
    5,740.80/7,920.36 = 3,646.14/x
  3. Step 3: Cross multiply
    5,740.80x = 7,920.36 × 3,646.14
  4. Step 4: Simplify right side
    5,740.80x = 28,878,741.41
  5. Step 5: Solve for x
    x = 28,878,741.41/5,740.80
  6. Step 6: Final answer
    x = 5,030.44

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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.