Home / 5,075.54-7,003.77-2,979.26

Finding the Fourth Proportional to 5,075.54, 7,003.77 and 2,979.26

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Solution

The fourth proportional to 5,075.54, 7,003.77 and 2,979.26 is: 4,111.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.54 : 7,003.77 = 2,979.26 : x
  2. Step 2: Convert to fraction form
    5,075.54/7,003.77 = 2,979.26/x
  3. Step 3: Cross multiply
    5,075.54x = 7,003.77 × 2,979.26
  4. Step 4: Simplify right side
    5,075.54x = 20,866,051.81
  5. Step 5: Solve for x
    x = 20,866,051.81/5,075.54
  6. Step 6: Final answer
    x = 4,111.10

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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.