Home / 1,586.81-2,187.70-1,302.19

Finding the Fourth Proportional to 1,586.81, 2,187.70 and 1,302.19

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Solution

The fourth proportional to 1,586.81, 2,187.70 and 1,302.19 is: 1,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.81 : 2,187.70 = 1,302.19 : x
  2. Step 2: Convert to fraction form
    1,586.81/2,187.70 = 1,302.19/x
  3. Step 3: Cross multiply
    1,586.81x = 2,187.70 × 1,302.19
  4. Step 4: Simplify right side
    1,586.81x = 2,848,801.06
  5. Step 5: Solve for x
    x = 2,848,801.06/1,586.81
  6. Step 6: Final answer
    x = 1,795.30

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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.