Home / 1,587.70-2,190.03-1,056.52

Finding the Fourth Proportional to 1,587.70, 2,190.03 and 1,056.52

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Solution

The fourth proportional to 1,587.70, 2,190.03 and 1,056.52 is: 1,457.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.70 : 2,190.03 = 1,056.52 : x
  2. Step 2: Convert to fraction form
    1,587.70/2,190.03 = 1,056.52/x
  3. Step 3: Cross multiply
    1,587.70x = 2,190.03 × 1,056.52
  4. Step 4: Simplify right side
    1,587.70x = 2,313,810.50
  5. Step 5: Solve for x
    x = 2,313,810.50/1,587.70
  6. Step 6: Final answer
    x = 1,457.33

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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.