Home / 5,312.64-7,331.58-3,075.20

Finding the Fourth Proportional to 5,312.64, 7,331.58 and 3,075.20

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Solution

The fourth proportional to 5,312.64, 7,331.58 and 3,075.20 is: 4,243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.64 : 7,331.58 = 3,075.20 : x
  2. Step 2: Convert to fraction form
    5,312.64/7,331.58 = 3,075.20/x
  3. Step 3: Cross multiply
    5,312.64x = 7,331.58 × 3,075.20
  4. Step 4: Simplify right side
    5,312.64x = 22,546,074.82
  5. Step 5: Solve for x
    x = 22,546,074.82/5,312.64
  6. Step 6: Final answer
    x = 4,243.86

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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.