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Finding the Fourth Proportional to 1,473.47, 2,210.47 and 651.77

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Solution

The fourth proportional to 1,473.47, 2,210.47 and 651.77 is: 977.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.47 : 2,210.47 = 651.77 : x
  2. Step 2: Convert to fraction form
    1,473.47/2,210.47 = 651.77/x
  3. Step 3: Cross multiply
    1,473.47x = 2,210.47 × 651.77
  4. Step 4: Simplify right side
    1,473.47x = 1,440,703.72
  5. Step 5: Solve for x
    x = 1,440,703.72/1,473.47
  6. Step 6: Final answer
    x = 977.77

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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.