Home / 4,782.47-7,172.31-1,860.08

Finding the Fourth Proportional to 4,782.47, 7,172.31 and 1,860.08

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Solution

The fourth proportional to 4,782.47, 7,172.31 and 1,860.08 is: 2,789.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.47 : 7,172.31 = 1,860.08 : x
  2. Step 2: Convert to fraction form
    4,782.47/7,172.31 = 1,860.08/x
  3. Step 3: Cross multiply
    4,782.47x = 7,172.31 × 1,860.08
  4. Step 4: Simplify right side
    4,782.47x = 13,341,070.38
  5. Step 5: Solve for x
    x = 13,341,070.38/4,782.47
  6. Step 6: Final answer
    x = 2,789.58

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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.