Home / 5,577.89-7,690.75-4,820.31

Finding the Fourth Proportional to 5,577.89, 7,690.75 and 4,820.31

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Solution

The fourth proportional to 5,577.89, 7,690.75 and 4,820.31 is: 6,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,577.89 : 7,690.75 = 4,820.31 : x
  2. Step 2: Convert to fraction form
    5,577.89/7,690.75 = 4,820.31/x
  3. Step 3: Cross multiply
    5,577.89x = 7,690.75 × 4,820.31
  4. Step 4: Simplify right side
    5,577.89x = 37,071,799.13
  5. Step 5: Solve for x
    x = 37,071,799.13/5,577.89
  6. Step 6: Final answer
    x = 6,646.20

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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.