Home / 1,669.19-2,302.19-1,005.35

Finding the Fourth Proportional to 1,669.19, 2,302.19 and 1,005.35

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Solution

The fourth proportional to 1,669.19, 2,302.19 and 1,005.35 is: 1,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.19 : 2,302.19 = 1,005.35 : x
  2. Step 2: Convert to fraction form
    1,669.19/2,302.19 = 1,005.35/x
  3. Step 3: Cross multiply
    1,669.19x = 2,302.19 × 1,005.35
  4. Step 4: Simplify right side
    1,669.19x = 2,314,490.18
  5. Step 5: Solve for x
    x = 2,314,490.18/1,669.19
  6. Step 6: Final answer
    x = 1,386.60

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1.5x scale

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.