Home / 2,880.35-4,317.03-1,318.16

Finding the Fourth Proportional to 2,880.35, 4,317.03 and 1,318.16

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Solution

The fourth proportional to 2,880.35, 4,317.03 and 1,318.16 is: 1,975.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.35 : 4,317.03 = 1,318.16 : x
  2. Step 2: Convert to fraction form
    2,880.35/4,317.03 = 1,318.16/x
  3. Step 3: Cross multiply
    2,880.35x = 4,317.03 × 1,318.16
  4. Step 4: Simplify right side
    2,880.35x = 5,690,547.06
  5. Step 5: Solve for x
    x = 5,690,547.06/2,880.35
  6. Step 6: Final answer
    x = 1,975.65

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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.