Home / 5,075.58-7,003.80-2,979.30

Finding the Fourth Proportional to 5,075.58, 7,003.80 and 2,979.30

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Solution

The fourth proportional to 5,075.58, 7,003.80 and 2,979.30 is: 4,111.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.58 : 7,003.80 = 2,979.30 : x
  2. Step 2: Convert to fraction form
    5,075.58/7,003.80 = 2,979.30/x
  3. Step 3: Cross multiply
    5,075.58x = 7,003.80 × 2,979.30
  4. Step 4: Simplify right side
    5,075.58x = 20,866,421.34
  5. Step 5: Solve for x
    x = 20,866,421.34/5,075.58
  6. Step 6: Final answer
    x = 4,111.14

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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.