Home / 3,259.96-4,889.24-1,038.40

Finding the Fourth Proportional to 3,259.96, 4,889.24 and 1,038.40

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Solution

The fourth proportional to 3,259.96, 4,889.24 and 1,038.40 is: 1,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.96 : 4,889.24 = 1,038.40 : x
  2. Step 2: Convert to fraction form
    3,259.96/4,889.24 = 1,038.40/x
  3. Step 3: Cross multiply
    3,259.96x = 4,889.24 × 1,038.40
  4. Step 4: Simplify right side
    3,259.96x = 5,076,986.82
  5. Step 5: Solve for x
    x = 5,076,986.82/3,259.96
  6. Step 6: Final answer
    x = 1,557.38

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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.