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Finding the Fourth Proportional to 1,254.16, 1,878.81 and 924.49

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Solution

The fourth proportional to 1,254.16, 1,878.81 and 924.49 is: 1,384.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.16 : 1,878.81 = 924.49 : x
  2. Step 2: Convert to fraction form
    1,254.16/1,878.81 = 924.49/x
  3. Step 3: Cross multiply
    1,254.16x = 1,878.81 × 924.49
  4. Step 4: Simplify right side
    1,254.16x = 1,736,941.06
  5. Step 5: Solve for x
    x = 1,736,941.06/1,254.16
  6. Step 6: Final answer
    x = 1,384.94

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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.