Home / 1,621.80-2,235.06-1,341.18

Finding the Fourth Proportional to 1,621.80, 2,235.06 and 1,341.18

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Solution

The fourth proportional to 1,621.80, 2,235.06 and 1,341.18 is: 1,848.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.80 : 2,235.06 = 1,341.18 : x
  2. Step 2: Convert to fraction form
    1,621.80/2,235.06 = 1,341.18/x
  3. Step 3: Cross multiply
    1,621.80x = 2,235.06 × 1,341.18
  4. Step 4: Simplify right side
    1,621.80x = 2,997,617.77
  5. Step 5: Solve for x
    x = 2,997,617.77/1,621.80
  6. Step 6: Final answer
    x = 1,848.33

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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.