Home / 2,585.40-3,875.46-1,658.28

Finding the Fourth Proportional to 2,585.40, 3,875.46 and 1,658.28

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Solution

The fourth proportional to 2,585.40, 3,875.46 and 1,658.28 is: 2,485.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.40 : 3,875.46 = 1,658.28 : x
  2. Step 2: Convert to fraction form
    2,585.40/3,875.46 = 1,658.28/x
  3. Step 3: Cross multiply
    2,585.40x = 3,875.46 × 1,658.28
  4. Step 4: Simplify right side
    2,585.40x = 6,426,597.81
  5. Step 5: Solve for x
    x = 6,426,597.81/2,585.40
  6. Step 6: Final answer
    x = 2,485.73

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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.