Home / 2,045.80-3,070.05-1,122.01

Finding the Fourth Proportional to 2,045.80, 3,070.05 and 1,122.01

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Solution

The fourth proportional to 2,045.80, 3,070.05 and 1,122.01 is: 1,683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.80 : 3,070.05 = 1,122.01 : x
  2. Step 2: Convert to fraction form
    2,045.80/3,070.05 = 1,122.01/x
  3. Step 3: Cross multiply
    2,045.80x = 3,070.05 × 1,122.01
  4. Step 4: Simplify right side
    2,045.80x = 3,444,628.81
  5. Step 5: Solve for x
    x = 3,444,628.81/2,045.80
  6. Step 6: Final answer
    x = 1,683.75

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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.