Home / 3,590.68-5,386.06-1,640.64

Finding the Fourth Proportional to 3,590.68, 5,386.06 and 1,640.64

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Solution

The fourth proportional to 3,590.68, 5,386.06 and 1,640.64 is: 2,460.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.68 : 5,386.06 = 1,640.64 : x
  2. Step 2: Convert to fraction form
    3,590.68/5,386.06 = 1,640.64/x
  3. Step 3: Cross multiply
    3,590.68x = 5,386.06 × 1,640.64
  4. Step 4: Simplify right side
    3,590.68x = 8,836,585.48
  5. Step 5: Solve for x
    x = 8,836,585.48/3,590.68
  6. Step 6: Final answer
    x = 2,460.98

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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.