Home / 2,887.36-4,330.58-807.14

Finding the Fourth Proportional to 2,887.36, 4,330.58 and 807.14

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Solution

The fourth proportional to 2,887.36, 4,330.58 and 807.14 is: 1,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.36 : 4,330.58 = 807.14 : x
  2. Step 2: Convert to fraction form
    2,887.36/4,330.58 = 807.14/x
  3. Step 3: Cross multiply
    2,887.36x = 4,330.58 × 807.14
  4. Step 4: Simplify right side
    2,887.36x = 3,495,384.34
  5. Step 5: Solve for x
    x = 3,495,384.34/2,887.36
  6. Step 6: Final answer
    x = 1,210.58

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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.