Home / 3,055.47-4,215.87-1,860.18

Finding the Fourth Proportional to 3,055.47, 4,215.87 and 1,860.18

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Solution

The fourth proportional to 3,055.47, 4,215.87 and 1,860.18 is: 2,566.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.47 : 4,215.87 = 1,860.18 : x
  2. Step 2: Convert to fraction form
    3,055.47/4,215.87 = 1,860.18/x
  3. Step 3: Cross multiply
    3,055.47x = 4,215.87 × 1,860.18
  4. Step 4: Simplify right side
    3,055.47x = 7,842,277.06
  5. Step 5: Solve for x
    x = 7,842,277.06/3,055.47
  6. Step 6: Final answer
    x = 2,566.64

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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.