Home / 1,298.94-1,948.08-477.06

Finding the Fourth Proportional to 1,298.94, 1,948.08 and 477.06

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Solution

The fourth proportional to 1,298.94, 1,948.08 and 477.06 is: 715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.94 : 1,948.08 = 477.06 : x
  2. Step 2: Convert to fraction form
    1,298.94/1,948.08 = 477.06/x
  3. Step 3: Cross multiply
    1,298.94x = 1,948.08 × 477.06
  4. Step 4: Simplify right side
    1,298.94x = 929,351.04
  5. Step 5: Solve for x
    x = 929,351.04/1,298.94
  6. Step 6: Final answer
    x = 715.47

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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.