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Finding the Fourth Proportional to 2,330.69, 3,496.40 and 687.02

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Solution

The fourth proportional to 2,330.69, 3,496.40 and 687.02 is: 1,030.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.69 : 3,496.40 = 687.02 : x
  2. Step 2: Convert to fraction form
    2,330.69/3,496.40 = 687.02/x
  3. Step 3: Cross multiply
    2,330.69x = 3,496.40 × 687.02
  4. Step 4: Simplify right side
    2,330.69x = 2,402,075.81
  5. Step 5: Solve for x
    x = 2,402,075.81/2,330.69
  6. Step 6: Final answer
    x = 1,030.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.