Home / 2,813.55-4,220.33-1,564.91

Finding the Fourth Proportional to 2,813.55, 4,220.33 and 1,564.91

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Solution

The fourth proportional to 2,813.55, 4,220.33 and 1,564.91 is: 2,347.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.55 : 4,220.33 = 1,564.91 : x
  2. Step 2: Convert to fraction form
    2,813.55/4,220.33 = 1,564.91/x
  3. Step 3: Cross multiply
    2,813.55x = 4,220.33 × 1,564.91
  4. Step 4: Simplify right side
    2,813.55x = 6,604,407.69
  5. Step 5: Solve for x
    x = 6,604,407.69/2,813.55
  6. Step 6: Final answer
    x = 2,347.36

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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.