Home / 5,075.55-6,999.89-4,780.31

Finding the Fourth Proportional to 5,075.55, 6,999.89 and 4,780.31

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Solution

The fourth proportional to 5,075.55, 6,999.89 and 4,780.31 is: 6,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.55 : 6,999.89 = 4,780.31 : x
  2. Step 2: Convert to fraction form
    5,075.55/6,999.89 = 4,780.31/x
  3. Step 3: Cross multiply
    5,075.55x = 6,999.89 × 4,780.31
  4. Step 4: Simplify right side
    5,075.55x = 33,461,585.26
  5. Step 5: Solve for x
    x = 33,461,585.26/5,075.55
  6. Step 6: Final answer
    x = 6,592.70

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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.