Home / 2,290.04-3,435.08-646.75

Finding the Fourth Proportional to 2,290.04, 3,435.08 and 646.75

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Solution

The fourth proportional to 2,290.04, 3,435.08 and 646.75 is: 970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.04 : 3,435.08 = 646.75 : x
  2. Step 2: Convert to fraction form
    2,290.04/3,435.08 = 646.75/x
  3. Step 3: Cross multiply
    2,290.04x = 3,435.08 × 646.75
  4. Step 4: Simplify right side
    2,290.04x = 2,221,639.05
  5. Step 5: Solve for x
    x = 2,221,639.05/2,290.04
  6. Step 6: Final answer
    x = 970.13

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Double scale
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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.