Home / 1,511.04-2,085.24-847.90

Finding the Fourth Proportional to 1,511.04, 2,085.24 and 847.90

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Solution

The fourth proportional to 1,511.04, 2,085.24 and 847.90 is: 1,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.04 : 2,085.24 = 847.90 : x
  2. Step 2: Convert to fraction form
    1,511.04/2,085.24 = 847.90/x
  3. Step 3: Cross multiply
    1,511.04x = 2,085.24 × 847.90
  4. Step 4: Simplify right side
    1,511.04x = 1,768,075.00
  5. Step 5: Solve for x
    x = 1,768,075.00/1,511.04
  6. Step 6: Final answer
    x = 1,170.10

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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.