Home / 2,386.80-3,294.36-1,862.64

Finding the Fourth Proportional to 2,386.80, 3,294.36 and 1,862.64

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Solution

The fourth proportional to 2,386.80, 3,294.36 and 1,862.64 is: 2,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.80 : 3,294.36 = 1,862.64 : x
  2. Step 2: Convert to fraction form
    2,386.80/3,294.36 = 1,862.64/x
  3. Step 3: Cross multiply
    2,386.80x = 3,294.36 × 1,862.64
  4. Step 4: Simplify right side
    2,386.80x = 6,136,206.71
  5. Step 5: Solve for x
    x = 6,136,206.71/2,386.80
  6. Step 6: Final answer
    x = 2,570.89

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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.