Home / 1,670.06-2,302.47-1,370.21

Finding the Fourth Proportional to 1,670.06, 2,302.47 and 1,370.21

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Solution

The fourth proportional to 1,670.06, 2,302.47 and 1,370.21 is: 1,889.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.06 : 2,302.47 = 1,370.21 : x
  2. Step 2: Convert to fraction form
    1,670.06/2,302.47 = 1,370.21/x
  3. Step 3: Cross multiply
    1,670.06x = 2,302.47 × 1,370.21
  4. Step 4: Simplify right side
    1,670.06x = 3,154,855.91
  5. Step 5: Solve for x
    x = 3,154,855.91/1,670.06
  6. Step 6: Final answer
    x = 1,889.07

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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.