Home / 1,458.28-2,011.08-1,312.48

Finding the Fourth Proportional to 1,458.28, 2,011.08 and 1,312.48

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Solution

The fourth proportional to 1,458.28, 2,011.08 and 1,312.48 is: 1,810.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.28 : 2,011.08 = 1,312.48 : x
  2. Step 2: Convert to fraction form
    1,458.28/2,011.08 = 1,312.48/x
  3. Step 3: Cross multiply
    1,458.28x = 2,011.08 × 1,312.48
  4. Step 4: Simplify right side
    1,458.28x = 2,639,502.28
  5. Step 5: Solve for x
    x = 2,639,502.28/1,458.28
  6. Step 6: Final answer
    x = 1,810.01

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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.