Home / 1,670.15-2,303.01-1,172.63

Finding the Fourth Proportional to 1,670.15, 2,303.01 and 1,172.63

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Solution

The fourth proportional to 1,670.15, 2,303.01 and 1,172.63 is: 1,616.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.15 : 2,303.01 = 1,172.63 : x
  2. Step 2: Convert to fraction form
    1,670.15/2,303.01 = 1,172.63/x
  3. Step 3: Cross multiply
    1,670.15x = 2,303.01 × 1,172.63
  4. Step 4: Simplify right side
    1,670.15x = 2,700,567.10
  5. Step 5: Solve for x
    x = 2,700,567.10/1,670.15
  6. Step 6: Final answer
    x = 1,616.97

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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.