Home / 4,685.63-7,029.13-1,398.30

Finding the Fourth Proportional to 4,685.63, 7,029.13 and 1,398.30

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Solution

The fourth proportional to 4,685.63, 7,029.13 and 1,398.30 is: 2,097.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,685.63 : 7,029.13 = 1,398.30 : x
  2. Step 2: Convert to fraction form
    4,685.63/7,029.13 = 1,398.30/x
  3. Step 3: Cross multiply
    4,685.63x = 7,029.13 × 1,398.30
  4. Step 4: Simplify right side
    4,685.63x = 9,828,805.25
  5. Step 5: Solve for x
    x = 9,828,805.25/4,685.63
  6. Step 6: Final answer
    x = 2,097.65

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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.