Home / 2,092.78-2,887.05-1,430.56

Finding the Fourth Proportional to 2,092.78, 2,887.05 and 1,430.56

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Solution

The fourth proportional to 2,092.78, 2,887.05 and 1,430.56 is: 1,973.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.78 : 2,887.05 = 1,430.56 : x
  2. Step 2: Convert to fraction form
    2,092.78/2,887.05 = 1,430.56/x
  3. Step 3: Cross multiply
    2,092.78x = 2,887.05 × 1,430.56
  4. Step 4: Simplify right side
    2,092.78x = 4,130,098.25
  5. Step 5: Solve for x
    x = 4,130,098.25/2,092.78
  6. Step 6: Final answer
    x = 1,973.50

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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.