Finding the Fourth Proportional to 2,130,986.90, 2,941,462.74 and 1,696,201.79
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Solution
The fourth proportional to 2,130,986.90, 2,941,462.74 and 1,696,201.79 is: 2,341,316.30
Step by Step Solution
- Step 1: Write the proportion equation
2,130,986.90 : 2,941,462.74 = 1,696,201.79 : x - Step 2: Convert to fraction form
2,130,986.90/2,941,462.74 = 1,696,201.79/x - Step 3: Cross multiply
2,130,986.90x = 2,941,462.74 × 1,696,201.79 - Step 4: Simplify right side
2,130,986.90x = 4,989,314,350,098.99 - Step 5: Solve for x
x = 4,989,314,350,098.99/2,130,986.90 - Step 6: Final answer
x = 2,341,316.30
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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.