Home / 4,767.36-7,139.49-2,421.19

Finding the Fourth Proportional to 4,767.36, 7,139.49 and 2,421.19

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Solution

The fourth proportional to 4,767.36, 7,139.49 and 2,421.19 is: 3,625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,767.36 : 7,139.49 = 2,421.19 : x
  2. Step 2: Convert to fraction form
    4,767.36/7,139.49 = 2,421.19/x
  3. Step 3: Cross multiply
    4,767.36x = 7,139.49 × 2,421.19
  4. Step 4: Simplify right side
    4,767.36x = 17,286,075.26
  5. Step 5: Solve for x
    x = 17,286,075.26/4,767.36
  6. Step 6: Final answer
    x = 3,625.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.