Home / 3,485.51-5,225.47-1,818.80

Finding the Fourth Proportional to 3,485.51, 5,225.47 and 1,818.80

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Solution

The fourth proportional to 3,485.51, 5,225.47 and 1,818.80 is: 2,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.51 : 5,225.47 = 1,818.80 : x
  2. Step 2: Convert to fraction form
    3,485.51/5,225.47 = 1,818.80/x
  3. Step 3: Cross multiply
    3,485.51x = 5,225.47 × 1,818.80
  4. Step 4: Simplify right side
    3,485.51x = 9,504,058.71
  5. Step 5: Solve for x
    x = 9,504,058.71/3,485.51
  6. Step 6: Final answer
    x = 2,726.74

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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.