Home / 4,292.94-6,438.40-1,172.21

Finding the Fourth Proportional to 4,292.94, 6,438.40 and 1,172.21

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Solution

The fourth proportional to 4,292.94, 6,438.40 and 1,172.21 is: 1,758.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.94 : 6,438.40 = 1,172.21 : x
  2. Step 2: Convert to fraction form
    4,292.94/6,438.40 = 1,172.21/x
  3. Step 3: Cross multiply
    4,292.94x = 6,438.40 × 1,172.21
  4. Step 4: Simplify right side
    4,292.94x = 7,547,124.67
  5. Step 5: Solve for x
    x = 7,547,124.67/4,292.94
  6. Step 6: Final answer
    x = 1,758.03

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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.