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Finding the Fourth Proportional to 946.02, 1,419.03 and 561

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Solution

The fourth proportional to 946.02, 1,419.03 and 561 is: 841.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    946.02 : 1,419.03 = 561 : x
  2. Step 2: Convert to fraction form
    946.02/1,419.03 = 561/x
  3. Step 3: Cross multiply
    946.02x = 1,419.03 × 561
  4. Step 4: Simplify right side
    946.02x = 796,075.83
  5. Step 5: Solve for x
    x = 796,075.83/946.02
  6. Step 6: Final answer
    x = 841.50

Related Problems

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Double scale
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Similar ratio
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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.