Home / 1,511.30-2,085.42-848.01

Finding the Fourth Proportional to 1,511.30, 2,085.42 and 848.01

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Solution

The fourth proportional to 1,511.30, 2,085.42 and 848.01 is: 1,170.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.30 : 2,085.42 = 848.01 : x
  2. Step 2: Convert to fraction form
    1,511.30/2,085.42 = 848.01/x
  3. Step 3: Cross multiply
    1,511.30x = 2,085.42 × 848.01
  4. Step 4: Simplify right side
    1,511.30x = 1,768,457.01
  5. Step 5: Solve for x
    x = 1,768,457.01/1,511.30
  6. Step 6: Final answer
    x = 1,170.16

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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.