Home / 2,925.50-4,030.55-2,218.37

Finding the Fourth Proportional to 2,925.50, 4,030.55 and 2,218.37

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Solution

The fourth proportional to 2,925.50, 4,030.55 and 2,218.37 is: 3,056.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.50 : 4,030.55 = 2,218.37 : x
  2. Step 2: Convert to fraction form
    2,925.50/4,030.55 = 2,218.37/x
  3. Step 3: Cross multiply
    2,925.50x = 4,030.55 × 2,218.37
  4. Step 4: Simplify right side
    2,925.50x = 8,941,219.96
  5. Step 5: Solve for x
    x = 8,941,219.96/2,925.50
  6. Step 6: Final answer
    x = 3,056.31

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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.