Home / 1,920.27-2,880.06-533.70

Finding the Fourth Proportional to 1,920.27, 2,880.06 and 533.70

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Solution

The fourth proportional to 1,920.27, 2,880.06 and 533.70 is: 800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920.27 : 2,880.06 = 533.70 : x
  2. Step 2: Convert to fraction form
    1,920.27/2,880.06 = 533.70/x
  3. Step 3: Cross multiply
    1,920.27x = 2,880.06 × 533.70
  4. Step 4: Simplify right side
    1,920.27x = 1,537,088.02
  5. Step 5: Solve for x
    x = 1,537,088.02/1,920.27
  6. Step 6: Final answer
    x = 800.45

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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.