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Finding the Fourth Proportional to 1,510.34, 2,085.47 and 1,006.68

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Solution

The fourth proportional to 1,510.34, 2,085.47 and 1,006.68 is: 1,390.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.34 : 2,085.47 = 1,006.68 : x
  2. Step 2: Convert to fraction form
    1,510.34/2,085.47 = 1,006.68/x
  3. Step 3: Cross multiply
    1,510.34x = 2,085.47 × 1,006.68
  4. Step 4: Simplify right side
    1,510.34x = 2,099,395.91
  5. Step 5: Solve for x
    x = 2,099,395.91/1,510.34
  6. Step 6: Final answer
    x = 1,390.02

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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.