Home / 2,417.75-3,336.81-1,423.12

Finding the Fourth Proportional to 2,417.75, 3,336.81 and 1,423.12

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Solution

The fourth proportional to 2,417.75, 3,336.81 and 1,423.12 is: 1,964.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.75 : 3,336.81 = 1,423.12 : x
  2. Step 2: Convert to fraction form
    2,417.75/3,336.81 = 1,423.12/x
  3. Step 3: Cross multiply
    2,417.75x = 3,336.81 × 1,423.12
  4. Step 4: Simplify right side
    2,417.75x = 4,748,681.05
  5. Step 5: Solve for x
    x = 4,748,681.05/2,417.75
  6. Step 6: Final answer
    x = 1,964.09

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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.